1. light (i.e. not heavy); feeling light (i.e. offering little resistance, moving easily)
2. light (i.e. of foot); effortless; nimble; agile
3. non-serious; minor; unimportant; trivial
4. slight; small; gentle; soft; easy; lighthearted (e.g. joke)
5. easy; simple
6. indiscriminate